And, of course, no one knows better about all of that than Trader Joe's employees themselves.

According to Glassdoor, Trader Joe's has over 460 locations in 41 states. About 38,000 employees work for the company. Their roles are divided up into nautically-themed categories, including crew members, merchants, mates, and captains.

Since its founding in 1968, the chain has acquired a cult-following thanks to its unique offerings, customer service, and, of course, it's ridiculously cheap wine.

Here's a look at some facts that all Trader Joe's crew members know that many shoppers don't:

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Packaging isn't important to the chain

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"A core foundation of Trader Joe's is to spend more money on the product than the packaging," former Trader Joe's crew member Matt Klaver wrote in a post on Quora. "You'll see that, in the store, the same item may not look identical across the shelf. That's for a good reason."

He added that the chain "spends very little money on packaging because they don't care about small color differences or cans that don't stack right."

"This makes life significantly easier on the manufacturer, who, in turn, gives them a discount," Klaver wrote.

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Trader Joe's sends some crew members on global food expeditions

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Trader Joe's goes out of its way to bring unique, international fare to its customers.

Back in 2016, the grocery chain hired a "product innovator," who, according to the role's job description, would be asked to "travel the world looking for the most creative food trends, in order to create the most exciting — wow! — products for Trader Joe's."

That's right. Trader Joe's employs people to travel around the world and taste food.

Sounds like a rough gig.

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Trader Joe's gets creative with its branding

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Frequent Trader Joe's shoppers may pick up on some amusing trends on certain product labels.

Here are a few examples of the chain's creative branding, according to the website Club Trader Joe's:

There's a reason why many items get discontinued

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"They're extremely strict about contracts with suppliers — we won't buy a product if we have to raise the price too high," a Trader Joe's employee wrote in a recent Reddit AMA. "That's often why so many items are discontinued."

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If you're shopping with kids, tell them to keep an eye out for a hidden surprise

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Trader Joe's is home to a special tradition that's meant to make shopping expeditions a bit more exciting for certain lucky children.

In some stores, crew members stash a stuffed animal somewhere in the store. If a kid spots it, they'll win lollipop at checkout.

"My store use to hide it in the shelves but the stuffed animal would get so dirty and disgusting — not to mention the germs it was carrying around," a Trader Joe's employee wrote on Reddit. "Another thing is we would ask the kids who found it to re-hide it for us and they would sometimes hide it so well we couldn't find it for weeks."

The employee said some stores hide the stuffed animal within the shelves, while others will place it high up somewhere.

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Crew members really appreciate it when you pitch in at checkout

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"In my experience — and the experience of anyone I ever worked with at TJ's — the customers who bagged were always vastly more appreciated, regardless of skill, than those who stood there, watched their items pile up, spaced out and passed the time delay on to the other patrons in line," former Trader Joe's crew member Natalie Mullin wrote on Quora.

Mullin added that the one exception to this rule were customers in the express line.

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There's a strategy that will help you get a ton of free samples

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Love the free samples at Trader Joe's? Then hit up the store toward the end of the night.

"If you're there at the end of the night, and we're just trying to clean everything out of there, you can probably stand there for 10 minutes and eat," a crew member told Thrillist.

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Or you could get a job at Trader Joe's for endless sampling

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Trader Joe's crew members actually get to sample the store's latest products.

In the grocery chain's own podcast, vice president of marketing product Matt Sloan said he "once even tasted one of the dog biscuits," Business Insider's Jessica Tyler reported.

For the most part, though, crew members typically leave the dog food testing to their own pets.

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Understaffing isn't an issue at the store

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Over-staffing is reportedly a pillar of Trader Joe's customer service strategy.

"They totally over-staff so that you don't feel like your stocking duties or your register duties trump interacting with customers," a crew member told Pop Sugar.

Each store also has as sizable group of middle managers

A lot of middle managers also work for the chain. Captains lead the store, while eight to twelve mates serve as middle managers.

"I thought that having so many middle managers would cause problems, but in fact it turns out to be good for everyone," former Trader Joe's employee Hayley Benham-Archdeacon wrote in a post for Lattice.

She wrote that tasks were distributed evenly.

"And if you don't feel comfortable going to one manager about a problem or personal event?" she wrote. "No problem, you have 10 others to speak to."

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Employees don't just ring bells for the fun of it

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The bells at Trader Joe's function as sort of a secret language for employees.

"One bell means everyone to your register, which means the lines are getting too long and they need everyone at a register," an employee told Pop Sugar. "Two bells means you need an employee to come over and help with something... Three bells means a manager needs to come over."

INSIDER's Cassidy Hopkins reported that the idea came from the old maritime practice of communicating via ship's bells.

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Store 'spoils' are donated to local charities

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"Trader Joe's donates a ton of food," a crew member told Pop Sugar. "It's called 'spoils,' which just means it's not in perfect shape. There's nothing wrong with eating a lime with a couple brown spots, but if you wouldn't buy it and be excited about buying it, then it gets put with spoils and typically gets donated."

The employee added that such produce is typically donated to local non-profit organizations.

Trader Joe's' website mentions its "long-running policy to donate 100% of products not fit for sale but safe for consumption."

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Trader Joe's job candidates are asked if they have a 'sense of adventure'

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In a Quora post, former Trader Joe's crew member Luke Kaiser wrote that the store's application process is "straightforward" and not too unlike that for most retail positions.

But there are a few questions that set the chain's application apart.

"On their application, they ask 'Do you possess a sense of adventure? Do you like to make people smile? Do you like to eat?'" Kaiser wrote. "These are the characteristics of the ideal employee."

"Trader Joe's wants to make sure that every customer feels valued, and they want your excitement about their products to inspire the customers you meet to make adventurous choices in the store," he added.

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Check out the Fearless Flyer for deals

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Trader Joe's doesn't really have sales.

On the chain's website, it says that the brand's anti-coupon policy came about because it is "... focused on providing the best everyday values, every day."

That being said, The Fearless Flyer, the store's official catalog, does occasionally announce deals. You can find The Fearless Flyer online, or in stores.

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The return policy is generous

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In a Reddit AMA, a Trader Joe's manager wrote, "Return anything for a full refund. Receipt not even completely required. We encourage people to try stuff and the staff recommends products to customers. If a customer doesn't like it, we want to fix that."

The manager added that they themselves have returned items in their own store.